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 *  - Redistributions of source code must retain the above copyright
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package com.onlyxiahui.control.menusample;

import java.util.AbstractMap.SimpleEntry;
import java.util.Map.Entry;
import javafx.application.Application;
import javafx.beans.value.ObservableValue;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.effect.DropShadow;
import javafx.scene.effect.Effect;
import javafx.scene.effect.Glow;
import javafx.scene.effect.SepiaTone;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.input.*;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.TextAlignment;
import javafx.stage.Stage;

public class MenuSample extends Application {

	final PageData[] pages = new PageData[] {
			new PageData("Apple",
					"The apple is the pomaceous fruit of the apple tree, species Malus "
							+ "domestica in the rose family (Rosaceae). It is one of the most "
							+ "widely cultivated tree fruits, and the most widely known of "
							+ "the many members of genus Malus that are used by humans. "
							+ "The tree originated in Western Asia, where its wild ancestor, "
							+ "the Alma, is still found today.",
					"Malus domestica"),
			new PageData("Hawthorn",
					"The hawthorn is a large genus of shrubs and trees in the rose family,"
							+ "Rosaceae, native to temperate regions of the Northern Hemisphere "
							+ "in Europe, Asia and North America. The name hawthorn was "
							+ "originally applied to the species native to northern Europe, "
							+ "especially the Common Hawthorn C. monogyna, and the unmodified "
							+ "name is often so used in Britain and Ireland.",
					"Crataegus monogyna"),
			new PageData("Ivy",
					"The ivy is a flowering plant in the grape family (Vitaceae) native to "
							+ " eastern Asia in Japan, Korea, and northern and eastern China. "
							+ "It is a deciduous woody vine growing to 30 m tall or more given "
							+ "suitable support,  attaching itself by means of numerous small "
							+ "branched tendrils tipped with sticky disks.",
					"Parthenocissus tricuspidata"),
			new PageData("Quince",
					"The quince is the sole member of the genus Cydonia and is native to "
							+ "warm-temperate southwest Asia in the Caucasus region. The "
							+ "immature fruit is green with dense grey-white pubescence, most "
							+ "of which rubs off before maturity in late autumn when the fruit "
							+ "changes color to yellow with hard, strongly perfumed flesh.",
					"Cydonia oblonga")
	};

	final String[] viewOptions = new String[] {
			"Title",
			"Binomial name",
			"Picture",
			"Description"
	};

	@SuppressWarnings("unchecked")
	final Entry<String, Effect>[] effects = new Entry[] {
			new SimpleEntry<>("Sepia Tone", new SepiaTone()),
			new SimpleEntry<>("Glow", new Glow()),
			new SimpleEntry<>("Shadow", new DropShadow())
	};

	final ImageView pic = new ImageView();
	final Label name = new Label();
	final Label binName = new Label();
	final Label description = new Label();
	private int currentIndex = -1;

	public static void main(String[] args) {
		launch(args);
	}

	@Override
	public void start(Stage stage) {
		stage.setTitle("Menu Sample");
		Scene scene = new Scene(new VBox(), 400, 350);
		scene.setFill(Color.OLDLACE);

		name.setFont(new Font("Verdana Bold", 22));
		binName.setFont(new Font("Arial Italic", 10));
		pic.setFitHeight(150);
		pic.setPreserveRatio(true);
		description.setWrapText(true);
		description.setTextAlignment(TextAlignment.JUSTIFY);

		shuffle();

		MenuBar menuBar = new MenuBar();

		// --- Graphical elements
		final VBox vbox = new VBox();
		vbox.setAlignment(Pos.CENTER);
		vbox.setSpacing(10);
		vbox.setPadding(new Insets(0, 10, 0, 10));
		vbox.getChildren().addAll(name, binName, pic, description);

		// --- Menu File
		Menu menuFile = new Menu("File");
		MenuItem add = new MenuItem("Shuffle",
				new ImageView(new Image("com/onlyxiahui/control/menusample/new.png")));
		add.setOnAction((ActionEvent t) -> {
			shuffle();
			vbox.setVisible(true);
		});

		MenuItem clear = new MenuItem("Clear");
		clear.setAccelerator(KeyCombination.keyCombination("Ctrl+X"));
		clear.setOnAction((ActionEvent t) -> {
			vbox.setVisible(false);
		});

		MenuItem exit = new MenuItem("Exit");
		exit.setOnAction((ActionEvent t) -> {
			System.exit(0);
		});

		menuFile.getItems().addAll(add, clear, new SeparatorMenuItem(), exit);

		// --- Menu Edit
		Menu menuEdit = new Menu("Edit");
		Menu menuEffect = new Menu("Picture Effect");

		final ToggleGroup groupEffect = new ToggleGroup();
		for (Entry<String, Effect> effect : effects) {
			RadioMenuItem itemEffect = new RadioMenuItem(effect.getKey());
			itemEffect.setUserData(effect.getValue());
			itemEffect.setToggleGroup(groupEffect);
			menuEffect.getItems().add(itemEffect);
		}

		final MenuItem noEffects = new MenuItem("No Effects");
		noEffects.setDisable(true);
		noEffects.setOnAction((ActionEvent t) -> {
			pic.setEffect(null);
			groupEffect.getSelectedToggle().setSelected(false);
			noEffects.setDisable(true);
		});

		groupEffect.selectedToggleProperty().addListener(
				(ObservableValue<? extends Toggle> ov, Toggle old_toggle,
						Toggle new_toggle) -> {
					if (groupEffect.getSelectedToggle() != null) {
						Effect effect = (Effect) groupEffect.getSelectedToggle().getUserData();
						pic.setEffect(effect);
						noEffects.setDisable(false);
					} else {
						noEffects.setDisable(true);
					}
				});

		menuEdit.getItems().addAll(menuEffect, noEffects);

		// --- Menu View
		Menu menuView = new Menu("View");
		CheckMenuItem titleView = createMenuItem("Title", name);
		CheckMenuItem binNameView = createMenuItem("Binomial name", binName);
		CheckMenuItem picView = createMenuItem("Picture", pic);
		CheckMenuItem descriptionView = createMenuItem(
				"Decsription", description);

		menuView.getItems().addAll(titleView, binNameView, picView,
				descriptionView);
		menuBar.getMenus().addAll(menuFile, menuEdit, menuView);

		// --- Context Menu
		final ContextMenu cm = new ContextMenu();
		MenuItem cmItem1 = new MenuItem("Copy Image");
		cmItem1.setOnAction((ActionEvent e) -> {
			Clipboard clipboard = Clipboard.getSystemClipboard();
			ClipboardContent content = new ClipboardContent();
			content.putImage(pic.getImage());
			clipboard.setContent(content);
		});

		cm.getItems().add(cmItem1);
		pic.addEventHandler(MouseEvent.MOUSE_CLICKED, (MouseEvent e) -> {
			if (e.getButton() == MouseButton.SECONDARY)
				cm.show(pic, e.getScreenX(), e.getScreenY());
		});

		((VBox) scene.getRoot()).getChildren().addAll(menuBar, vbox);

		stage.setScene(scene);
		stage.show();
	}

	private void shuffle() {
		int i = currentIndex;
		while (i == currentIndex) {
			i = (int) (Math.random() * pages.length);
		}
		pic.setImage(pages[i].image);
		name.setText(pages[i].name);
		binName.setText("(" + pages[i].binNames + ")");
		description.setText(pages[i].description);
		currentIndex = i;
	}

	private static CheckMenuItem createMenuItem(String title, final Node node) {
		CheckMenuItem cmi = new CheckMenuItem(title);
		cmi.setSelected(true);
		cmi.selectedProperty().addListener(
				(ObservableValue<? extends Boolean> ov, Boolean old_val,
						Boolean new_val) -> {
					node.setVisible(new_val);
				});
		return cmi;
	}

	private class PageData {
		public String name;
		public String description;
		public String binNames;
		public Image image;

		public PageData(String name, String description, String binNames) {
			this.name = name;
			this.description = description;
			this.binNames = binNames;
			image = new Image(getClass().getResourceAsStream(name + ".jpg"));
		}
	}
}
